8 10.17 A 4.0-m thick fill is to be made of a soil with a Proctor maximum dry unit weight of 19.4 kN/m³ and an optimum moisture content of 13.0%. This fill will be compacted at optimum moisture content to an average relative compaction of 92%. The underlying soils are as shown in Figure 10.26. Consolidation tests were performed at Points A and B with the following results: 3.0 m 2.1 m Sample A B Ce 0.59 0.37 Cr 0.19 0.14 y = 14.0 kN/m³ 1.90 1.21 The silty sand is normally consolidated. Determine the ultimate consolidation set- tlement due to the weight of this fill. y = 17.5 kN/m³ σ' (kPa) 75 100 Silty sand (SM) D,= 45%

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Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.